TABLE 1:

Distribution by location

Parent VesselNo.
Aneurysms
    Internal carotid artery
        Ophthalmic artery5
        Posterior communicating artery19
        Carotid terminus3
        Anterior cerebral artery1
        Anterior communicating artery7
        MCA1
    Posterior circulation
        Vertebral artery1
        Superior cerebellar artery1
        Posterior inferior cerebellar artery2
        Basilar tip4
Vessel occlusions/fistulae
        Dysplastic P-2 segment1
        ICA sacrifice for fusiform dilation1
        Parenchymal AV fistula MCA territory1
        Cavernous-Carotid fistula2
  • Note:—P-2, posterior cerebral artery segment 2; AV, arteriovenous; MCA, middle cerebral artery.